Import Exclusives Ltd. received an invoice from Dansk Specialties of Copenhagen with terms 5/20 R.O.G. for the items listed below. 110 teak trays at $35.70 each 20 teak buckets at $68.30 each 45 teak salad bowls at $53.90 each 2 1 All items are subject to trade discounts of 305%, 73%, and 6%. (a) If the shipment was received on November 21, what is the last day of the discount period? (b) What is the amount due if the invoice is paid in full on December 7? (c) If only a partial payment is made on the last day of the discount period, what amount is needed to reduce the outstanding balance to $2000